METHOD AND DEVICE FOR DETECTING AEROSOL PARTICLES

摘要

Sizes or size distribution of aerosol particles of an aerosol gas stream is detected. A particle-free carrier flow is saturated in a saturated or (101) by a first condensing medium, where after the carrier flow(107) is mixed in a mixing section (103) turbulently with aerosol particle flow (108). Advantageously plurality of separate mixtures with different saturation ratios are provided and introduced to the first condensing environment (104) in order to condensate the condensing medium onto the aerosol particles. Depending of the saturation ratio the particles with different lowest original size are activated and growth in a growing section (104A) and/or in the condensing environment (104). After activation and growing the particles are detected by a detecting means(110).